| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 2795 |
| Headlamp aim out of alignment | 1838 |
| Windscreen wiper does not clear the windscreen effectively | 1496 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 774 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 744 |
| Brake pipe excessively corroded | 562 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 528 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 520 |
| Registration plate issues | 417 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 319 |
| Brakes imbalanced across an axle | 295 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 262 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 232 |
| Offside Front Position lamp not working |4.2.1 |a|| | 216 |
| Parking brake: efficiency below requirements |3.7.B.7| | 206 |
| Nearside Side repeater not working |1.4.A.2c| | 184 |
| Windscreen washer not working | 176 |
| Offside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 171 |
| Exhaust emits an excessive level of metered smoke |7.4.B.3a| | 157 |
| Rear brake disc in such a condition that it is seriously weakened | 143 |
| Offside Side repeater not working |1.4.A.2c| | 142 |
| Nearside Front Coil spring fractured or broken (5.3.1 (b) (i)) | 139 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 130 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 126 |
| Offside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 124 |
| Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 123 |
| Front brake disc in such a condition that it is seriously weakened | 110 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 105 |
| Rear parking brake recording little or no effort | 103 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 102 |
| Centre Stop lamp not working |1.2.1b| | 100 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 97 |
| Rear brake binding | 97 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 95 |
| Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i)) | 95 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 94 |
| Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 93 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 91 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 91 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 88 |
| Nearside Side repeater not working (4.4.1 (a) (ii)) | 87 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 84 |
| Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 84 |
| Offside Stop lamp not working |1.2.1b| | 75 |
| Anti-lock braking system warning lamp indicates an ABS fault | 73 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 72 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 65 |
| Windscreen has damage | 65 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 65 |
| Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a)) | 64 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 64 |
| Parking brake lever has no reserve travel |3.1.6b| | 64 |
| Nearside Stop lamp not working |1.2.1b| | 61 |
| Electronic parking brake warning indicates a malfunction |3.1.7| | 59 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 58 |
| Electronic parking brake warning indicates a malfunction (1.1.6 (e)) | 57 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 55 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 54 |
| Nearside Front Shock absorbers has a serious fluid leak | 54 |
| Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) | 53 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 53 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 53 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 51 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 51 |
| Offside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 51 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 49 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 48 |
| Front position lamp|s| not working |1.1.A.3b| | 48 |
| Electronic stability control warning lamp indicates a fault (7.12 (e)) | 45 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 45 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 45 |
| Offside Rear Stop lamp not working |1.2.1b| | 44 |
| Battery insecure |1.9.1| | 43 |
| Rear fog lamp not working |1.3.2b| | 43 |